Governor for turbines



Oct. 6, 1936. w J PUGH 2,056,866

GOVERNOR FOR TURBINES Filed Sept. 5, 1955 22 20 O c A? 2? 2/ Mm? JPZZ ZATTORNEY s Sheets-She 1 Oct. 6, 1936. w J H 2,056,866

GOVERNOR FOR TURBINES Filed Sept. 3, 1955 3 Sheets-Sheet 2 INVENTORATTORNEY w. J. PUGH 2,056,866

GOVERNOR FOR TURBINES Filed Sept. 3, 1935 3 Sheets-Sheet 3 Patented Oct.6, 1936 r UNITED STATES PATENT OFFICE 2,056,866 GOVERNOR FOR TURBINESWilliam J. Pugh, East Milton, Mass. Application September 3, 1935,Serial No. 39,005 2 Claims. (Cl. 253-144) This invention relates toturbines which may deflecting water to the runner 'l and by varying bereadily and economically installed and of the the deflection of thewater tothe runner, power character employing a turbine runner and adeveloped by the device may be varied. The guide deflecting guidetherefor, and has for the primary H1 is capable of turning or rotatingand itsdirecobject the provision of a load control means for tion ofrotation is opposite to that of the turbine 45 automatically governingthe power development runner. of the device by controlling the guide tovary the Located in the casing 4 and secured to the tufluid deflectionto the turbine runner and therebular shaft 9 is a brake drum ll havingassoby automatically vary the output of power prociated therewith brakeshoes l2. The brake shoes portionately to the load on the device. arejournaled on a stub l3 secured to the cover 5. 1

With these and other objects in view, this in- The free ends of theshoes are engaged by a cam vention consists in certain novel features ofconl4 and are held in engagement therewith by a struction, combinationand arrangement of parts spring I5 connecting said shoes. The cam isseto be hereinafter more fully described and cured to a shaft 16supported by a journal l'l carclaimed. ried by the cover 5. An arm I8 issecured to the 15 For a complete understanding of my invention, shaftand has connected thereto a governor reference is to be had to thefollowing description mechanism IS. The governor mechanism is of a andaccompanying drawings, in which conventional ball type construction andis se- Figure l is a side elevation, partly in section, cured to anddriven by the shaft 6. The goverillustrating a turbine constructed inaccordance nor mechanism also includes in its construction a with myinvention. spring 20, one end of which seats against the Figure 2 is atop plan view illustrating the same. sliding yoke 21 of the governor andthe other end Figure 3 is a fragmentary horizontal sectional against thecollar 22 adjustably secured to the view showing a brake mechanism.shaft 6. The collar 22 permits the tension of the Figure 4 is a top planView illustrating the apspring 20 to be varied and consequently provides25 plication of the turbine to a stream or body of means for varying theaction of the governor water. mechanism. A bell crank lever 23 isconnected Figure 5 is a fragmentary vertical sectional to the governoryoke 2| and to a link 24 which is View showing the same. in turnconnected to the arm I8. The bell crank Referring in detail to thedrawings, the nu lever is pivotally mounted to a bracket 25 carried 30meral l indicates a stream or any other body of by the cover 5. A dashpct 26 is carried by the water and traversing said stream is a dam 2formcover 5 and is connected to the link 24 and ining a part of aturbine 3 driven by the force of cludes in its construction acompensation spring the water. The dam and turbine form a single 21. Thegovernor mechanism is driven by the unit and the installation of theunit to the stream shaft 6 and acts to apply and release the brake 5 orbody of water is extremely simple and economshoes l2 from the drum I I.The brake shoes l2 ic'al as will be apparent from Figures 4 and 5 ofwhen applied to the drum H prevent rotation of the drawings. The turbineincludes a vertically the guide 10 of the turbine and the holding of thearranged cylindrical casing 4 to which the dam guide against rotationprovides a greater deflec- 0 units are secured. The upper end of thecasing 4 tion of fluid to the turbine runner, consequently 40 is closedby a removable cover 5 forming a jourpermitting maximum powerdevelopment by the nal for a vertically arranged turbine shaft 6.latter. It is to be understood that the rotation The shaft 6 projectswell into the casing and has of the guide is due to the action of theforce of secured to its lower end a turbine runner I of a water thereon.The governor mechanism is so conventional construction. The casing 4 isconnected with the brake shoes that an increased 45 equipped with ascreened inlet 8 to admit water speed of the shaft 6 brings about arelease of the from the stream to the runner 1 for bringing brake shoesfrom the drum, allowing the turbine about rotation of the shaft 6. Theflow of water guide to rotate or turn under the influence of the throughthe inlet 8 is controlled by a sliding gate water, and reducing thepower developed by the 6 equipped with an operating means 'I of anyturbine runner, which brings about a slowing 50 conventionalconstruction. down of the latter. As the load increases on the A tubularshaft 9 is journaled on the shaft 6 shaft 6, the speed of rotationthereof decreases within the casing and its lower end has secured andthe governors action is reverse or brings thereto a turbine guide ill ofthe conventional about application of the brake shoes to the drumconstruction. The guide l0 acts as a medium for and thereby preventsturning of the guide H) for 55 increasing the angle of deflection ofwater to the turbine runner and thereby increases the power output fromthe latter. a

While this invention is described as especially adaptable for propulsonby water force, it is to be understood that its application is readilyadaptable for turbines operated from air or gas pressure or any otherfluid pressure.

Having described the invention, I claim:

1. A turbine including a casing having located therein a turbine runnerand a deflecting guide therefor to control the power output of saidturbine runner, a shaft secured to the runner and journaled to thecasing, a tubular shaft journaled on the first shaft and connected tothe guide, a brake drum secured to the tubular shaft, a brake mechanismengageable and disengageable with the drum and supported by the casing,and a governor supported by said casing and connected to the brakemechanism and to the first shaft.

2. In a turbine, a casing having a turbine runner therein'and adeflecting guide for the latter rotatable in a direction opposite to thedirection of rotation of the runner, a shaft secured to the runner, atubular shaft journaled on the first shaft and secured to the guide, abrake drum secured to the tubular shaft, brake shoes to engage anddisengage with the drum the casing, an operating means for said brakeshoes carried by the casing, and a governor connected to the operatingmeans and to the first shaft for controlling the deflecting guide forincreasing and decreasing the power output by said 15 turbine runner.

WILLIAM J. PUGH.

and supported by 10

